Question

3. The constancy of e/m ratio for electro
shows that
1) Electron's mass is 1/1837th of the mass
proton
2) Electrons are universal particles of a
matter
3) Electrons are produced in discharge tubes on
4) None of the above​

Answer 1

Answer:

bro B option is correct

Explanation:

But A is also

Answer 2

Answer:

2) electrons are universal particles of matter

Explanation:

I honestly don't know how but that's the answer